Headphone Plug Replacement
This guide demonstrates the replacement process for the 3.5mm plug on headphones.
- Author: Andrew Yoder
- Time estimate: 30 - 45 minutes
- Difficulty: Difficult
Oftentimes one earpiece of a pair of earphones stops working. The problem is usually where the wires attach to the 3.5mm plug. This guide shows how to replace the plug and fix your earphones.
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- 3.5mm plug This can be purchased from Radioshack.
Step 1 — 3.5mm plug ¶
Unscrew the casing from your replacement plug.
Step 2 ¶
Using a multimeter (set in ohms to test resistance), test each terminal on the base of the plug to see which terminal corresponds to which speaker (left or right). You'll know they correspond when a value other than 1 appears on the multimeter.
Image 3 shows which part of the plug corresponds to each cable:
Common (or ground)
Step 4 ¶
Use your wire stripper to expose about 2cm of the the wire.
You must also remove the coating from each smaller, individual wire by using a wire stripper, fine sandpaper, or something of that sort.
Step 5 ¶
Slide the casing (from Step 1) onto the wire.
Step 6 ¶
Slide the red wire through the hole of the terminal that corresponds to the right speaker. Wrap the wire around the terminal a few times, then solder it in place.
Repeat this step for the terminal that corresponds to the left speaker. Note that the left audio wire is often white or green.
Finally, solder the common/ground wire (often copper colored) and any multicolored wires through the remaining hole.
Step 7 ¶
To finish, screw the casing back onto the plug.